Telephone.



A. G. REMHILT. TELEPHONE. APPLIGATION FILED SEPT. 7, 1910. 1,001,685, Patented Aug. 29, 1911.

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q/Vi/buaooeo A. G. REMHILT.

TELEPHONE. APPLICATION FILED SEPT.7,1910. 1,001,685. Patented Aug. 29, 1911.

3 SHEETS-SHEET 2.

Imma- 11 us n-l oz A.G.Rem,hilt

A. G. REMHILT.

' TELEPHONE.

APPLICATION FILED SEPT. 7, 1910.

1 Patented Aug". 29, 1911.

3 SHEETSSHBET 3.

wi lmwom ARTHUR G; -REMHILT, OF PHILADELPHIA, PENNSYLVANIA.

TELEPHONE.

root .685.

Specification of Letters Patent.

Patented A11 29, 1911.

Application filed September 7 1910, Serial No. 580.822.

. To all whom "it may concern:

Be it: known tliatjl. 'Anrnun G. Rniiiiiin'r, a citizen of the United States, residing at Philadelphia, in the county of Philadel- ,5g phia and State of Pennsylvania, have illvented certain new and useful Improvements in 'lelcphones of which the follow- 1 .iiig is a specification, reference being had A to the accompanying drawings.

it) This invention relates to improvements I I ,15 to either mounting the receiver in telephones and more particularly to means for mounting and supporting a tele same may be readily adjustedso that it can be applied ear and is so arranged with re lation to the transmitter that the user is prevented troni bringing his mouth' too close to the diaphragm, whereby the objOCl'lOllflblQ iniittliiig of the voice. tones is 2 0 elim nated, thus conducing to the perfect elucidation of the message by the receiver at the other end of the line.

A. further object of the invention is to provide new and novel means for movably upon the mouthpiece of the t'ansniittei' and for locking the receiver in its adjusted position for use by the operator, and means for automatically connecting and disconnecting the line and bell circuits when the receiifer ismoved into position for use and returned to its inoperative position. I

Another ob ect of the invention is to pro- .vide a convenient and easily operated telephone receiver which is light in Weight,

'inay be inexpensively constructed and is ""ahsolutely dust-proof and sanitary.

t still further ob ect of the invention resides in the provision of a telephone transf niittei' having a tubular arm movable therej on and a. telephone receiverpivoted iii the end of said arm and movable into the mouthpiece of the transmitter to close the same, said transmitter arm and the receiver carrying co-acting elements to support the receiver in its inoperative means on the mouthpiece of the transmitter l transmitterarm to automatically release the i 5}) receiver when the arm is'svvung to a lateral pos tion. so that; the receiver inay be (118- engageable with the locking eleineiitin the position, and

posed for application to the ear of the op- ,and inoperative positions.

lVith these and other objects in view, the invention consists of the novel features of construction and the coinblnation and ar rangenient of parts hereinafter fully (le scribed and claimed. and illustrated in the accompanying drawings. in which- Figure 1 is a side elevation, partly in section. showing a telephone receiver and transmitter constructed in accordance with the present invention; Fig. 2 is a section taken on the line 2-2 of Fig. 1. the end cap of the receiver being removed; Fig. 3 is a top plan view of the transmitter showing the receiver in its operative position; Fig. 4 is a section taken on the line 4- of Fig. 1; Fig. 5 is a front elevation of the transmitter showing the movable ,arm in locked engagement therewith; Fig. (l is a section taken on the line (3(% of Fig. 2; and Fig. 7 is a diagrammatic view showing thejline and hell circuit connections.

In the eiiiluit'linient of my invention illustrated in the accompanying drawings I have illustrated the same as applied to the ordinary desk telephone. but it will be. understood that the invention also applicable to the ordinary wall telephone or phones mounted in any other desirable manner.

5 indicates the stand of a telephone of the above well known character. Arod 5 is telescopically mounted in the stand 5 so that the transmitter may be adjusted to any desired height Upon the upper end of this rod the spaced ears 6 are formed. A supporting arm 7 is positioned at one ;end between these cars and is adapted to be rigidly secured against niovenieiit by a set screw 8. Upon the upper end of the supporting arini. the'transinitter 9 is mounted. It will be obvious that by loosening the set screw the transmitter may be arranged in [any desired angular position for con- K811181166 in speaking. The transmitter 9 is provided with the usual. mouthpiece 10 upon which is mounted for swinging movement a hollow arm 11. This arm comprises a main body portion which is provided with the removable side plates 12, the purpose oi which will be apparent from the following description: The mouthpiece 10 of the transmitter is provided with an annular extension 10" which is threaded or otherwise secured thereto. This extension has a circumferential rib 14 formed thereon with which an angular flange 13 formed upon the body of the arm 11 engages as shown in Fig. 1 of the-drawings. A ring 13 has threaded engagement in the flange 13 to retain the same'upon the rib 14. The arm is thus mounted for free swinging circular movement on the mouthpiece and at its other end is forwardly projected and circu- *larly iormed,- as shown. at 15. In the side plates of the arm at its free end the ends oi: a shaft 16 are mounted. The intermediate portion of this shaft between the side plates is squared and upon the same the contact disks 17, 18, and 19 are mounted. The shaft 16 is formed of hard rubber or other suitable non-conducting material and ,is pro vided at each end with a contact plate 20, said plates being arrangedlupon opposite faces of the insulating'shaft.

is adapted to. be transmitted through the disks 17, 18 and 19 and the plates 20 to the magnets carried by the receiver, as will presently appear, v

The receiver arm 21 is curved at its lower end and bifurcated to engage upon the, op-

posite'side plates of th'e transmitter ar1n.

receivenis in its operatlve. position. to (11$- connect .or break the bell circuit. The other disk 18 is provided with a similar insulated portion 18' which engages a contact spring 18 of one of the line circuit wires to which the bell wire is joined. The ,otherline wire is connected to a contact spring .17 which bears upon 'the periphery of. the disk 17. The other cnd ofthe receiver arni 21 is also bifurcated or, forked to receive a receiver 1 head 24,'sa1d arm being s'cured; to opposite sides of the head by means of the screws 25'. A cylindrical elongated casing 26 is carried by the receiver headand isidispos'ed within the semi-cylindrical receiver arm 21. This casing. carries a magnet 27 whichis of the The current double pole variety and is connected to the electro-magnet coils 28 arranged in the receiver head 24. The magnet 27 and' the core of the coils 28 are connected through the medium of the conducting arms 29 extending from the double pole magnet 27 and fixed at their upper ends to the ends of the magnets 28 by means of suitable screws 30. A conducting rod 31 extends along each side of the semicylindrical receiver arm 21 and have their ends mounted upon the shaft 16 in engagement with the contact plates 20; and their other ends secured to the receiver head by means of the screws 25. \Yashers 32 are arranged between the ends of the shaft 16 and said conducting rods. spring plate 33 is secured to the inside of the receiver arm 21 and. is provided with a longitudinal slot 83 to receive a pin 3-1 fixed in the magnet casing 26. The receiver head is thus yieldingly held against swinging movement between the upper ends of the arms 21. will, however, permit of the convenient adjustment of the receiver head to the ear of the operator. v

The receiver head 24 is, of course,-i:'orm'ed ,of insulating material'tand has arranged on each end a reniovaliiexcap 35 and 36. The

cap' 86 secures in one end of the receiver head a diaphra 'm 37,;as is usual in the constructlon of teljhphone receivers. The-end of the receiver hca rl is formed with an annular-reversely curved surface for engagement with one edge of the enlarged annular end of the receiver arm 11. A, circular lip 37 is'formcd on the receiver head and engages upon the outer .edge of the annulus 13, said edge being convexed and slightly- Said siotted spring plate.

spaced from the surface of the receiver head so as to permit of the easy movement of the receiver into and out of the'eittension of the mouthpiece of {the transmitter. I

Upon the opposite sidesjof'the mouthpiece extension 10 of the transmitter, a plate 38 i is secured by meansof the screws 39 and has formed on one end alug 38 havlng a .bew

eled'edge 38. Immediately above this bev eled edge ofthe'lug a notch or recess 40 is formed therein. .This notch is adapted to receive a locking dog 41 pivotally mounted in the hollow transmitter arm-11 and yieldingly held against movement by means of a leaf spring -12 fixed at one end to one of the flanged edges of a plate ,43 carried one of the removable side plates 12 of the arm of the transmitter mouthpiece, the dog -11 will engage the beveled edge of the lug 38 and be forced-outwardly against thetension of the spring 42., .After passing the leg 38 It 'will be obvious that when the re-' ceivcr arm is swung-laterally to either side 1' this spring:forces thelocking dog into the;

notch. 40,- thus. securelyflocking the receiver arm in its adjusted position. Upon the dog 11 a hip; 14. is formed which is engaged by a latch finger carried by the magnet casing 26 which is secured to the receiver head. Sin'niltaneously with the locking of the transmitter arm, the receiver is released by the disengagement of the'lug' 44. from the end of the latch finger 45. Thusas the receiver arm moves to the desired position, the operator swings the receiver head out of the mouthpiece extension 10 ofthe trans mitter so that it extends forwardly from the free end of the transmitte arm and is disposed in position for application to the ear of the operator. As before stated,thismove-- ment of the receiver arm breaks the bell circuit and connects the line circuit, after the usual eonneptions have been properly made at the central office. it will be observed from reference to Fig. 7 that the disks 17 and '19 arearranged upon one of the contact plate: 20 of the shaft 16 and that the other disk 15 arranged upon the other of said contact plates, whereby the disk' 18 is at all times insulated from thedishs 17 and 19. Whcn in operative position, the spring 19 is engaged with the insulated portion of the disk 19, thereby breaking; ordisconnecting the hell circuit and stop ping the ringing of the tclephonehell. At-

"the same time the receiver and transn'iitter are placed in the circuit through the intermediate disk 1?, disk 18 and the contact spring and magnets 27 and 2h. The movement of the receiver head into position for use after the locking of. the swinging receiver arm is accehn'atcd by means of the contact spring 17' which engages a lug 17 formed on the intcrn'ietliate contact disk 17. It will thus be seen that when the receiver head is in its inoperative position, the bell circuit, is connected through the tl1Sl(S 17 and 19 and when said head is in its operative position the line circuit is connected through the disks l'i and l8. After the receiver has been used and it is again moved to 'its inoperative position in the mouthpiece of the transmitter the latch ingot l5 extends into ciiiflili' ctmncctions to the receiver and transmitter. The niagnurt-lz and the coils 9.8 operate in a L niiiar manner to those (which are employed in the ordinaryconstruction of telephone receivers, said magnet and coils iorming the magnetic fieldto;magnetize the very-novel form of receiver coils and vibrate the diaphragm 17 whereby the sound waves are produced. The peculiar arrangement of the double pole magnet 27 is rendered necessary, owingto the fact that a'l'nat'net of sutiicicnt size is necessary to prevent the same being demagnctizcd. This is also the reason why the nuurnet is not arranged directly in the receiver as it has been deu'ionstrated that the straight form of magnet is preferable to the bent or curved form, in order to arrann'e'the magi"- net in therecciver head it would be necessary to very much restrict itssize and. arrange the same in such manner that the elticiency of the device would he n'iatcrially affected. it will be obvious, however. that other forms of double pole magnetsv may be utilized and that my invention is by no means restricted to the specific form shown in the drawing. By thus locking; the receiver head securely in the n'iouthpiecc and providing the own-hangingannular lip 37, the entrance of dust or other foreign matter into the transn'iittcr which would render the same insanitary is prevented. As a. further preventative against insanitary conditions, I provide a disinfectant receptacle 46 which is supported upon the lower end of the arm. 7 by means of a bifurcated vertical arm l7 which is rigidly secured to the transmitter arm 7. The upper end of the receptacle th open and extends through the wall of the transmitter mouthpiece. This receptacle may be easily and quickly removed so. that from time to time the disinfection? can be renewed.

From the foregoing it will bc seen that I have devised a telephone transn'iitter and a and inc-a us for mounting the same whereby the oh iectionable insanitary features of the telephones as at present constructed is entirely eliminated. By mounting the receiver in the manner above described so that it necessary to extend the same u1twardly" and forwardly from the transmitter before the circuit connectious are made, the car of the operator must be disposed at all times at a certain distance from the transmitter so that in talking the mouth of the spcai-zer is not dissposed in close relation to the transmitter diaphragm. This will, to a great extent, overcome the muiili'ug of the voice tones as rcczj-ived by the user at the other end of the line, which is entirely due to the fact that. the speaker has lips po--aitioned too closely to the transn'iitter mouthpiece. The spring contact plates ll, '18" and are lived to the plate 4 arranged upon one side of the receiver arm t1 and extending into the same. The circuit wires are connected to the screws which secure this spring plate and are connected orjoined to form a single cord 48. "A telephone constructed in the 60 inoperative &

various elements, it will beunderstood that theinvention is susceptible of a great many minor modifications without departing from the essential feature or sacrificing any of the advantages thereof.

Having thus described the invention what claimed is: w

1. in a telephone,- a transmitter having a mouthpiece, an arm movable on the mouthpiece, a receiver connected'to said arm and movable with respect thereto, meafis for locking the receiver and arm together, and means for locking the movable arm on the tr-ansn'iitter mouthpiece and simultaneously unlocking the receiver to permit of its movement to operativeposition.

2. Ina tclcphone,"a transmitter havinga mouthpiece, a tubular arm circumferentially movable on the mouthpiece-,a receiver con-' nected to the arm'and movable with rela- -tion thereto, said receiver being adapted to be positioned in the mouthpiece in its in0p-.

erative position, meanscontrolled by the m, )vement of the receiver to make and break mouthpiece,

th bell and line circuits in the movement oflthe receiver to its operative and inoperative pos1t1ons,- n1eans for locking said arm 'upon the transmitter mouthpiece, and means for loclring'the receiver-inthe'mouthpiece in its inoperative positioh. 7 I

3. In a telephone, atransmitter having a a tubular circumferentially movable arm on said mouthpiece, a locking elementcarriekl by the arm, means arranged on opposite sides of the mouthpiece to engage a locking element carried by the. arm I mouthpiece,

and lock said arm against movement, a receiver independently movable of said arm into and out of thetransmitter mouthpiece, and means for locking said receiver and arm' together against relative movement Fm the osition of the receiver.

4. In a te ephone, a transmltter having a mouthpiece, a swinging arm arrangedon the mouthpiece, a locking device carried byithen arm, means arranged at diametricaH hpp'osite white on the mouthpiece to engage sat lockingdevice and support the'arm in a laterally extending position relative to the mouthpiece, a receiver connected to said arm and movable independently of the same, into and out of the mouthpiece, means carried by the receiver engaging said locking device thev electric circuit.

and movable into and out of to release the arm when the receiver is moved to an inoperative posit on, and means controlled-by the movement of the receiver for making and Breaking the electric circults.

5. In a telephone, a transmitter having a mouthpiece, a movable element on the mouthpiece, a receiver pivotally connected to said element and movable into and out of. the mouthpiece to-its operative and inoperative positions, means for supporting said element on the moutipiece in a lateralpcsition with relation thereto, and means for locking the receiver in the mouthpiece, said supporting means engaging said locking means in the movement of said element to its lateral position to release the receiver and permit the same to be moved out of the mouthpiece to its operative position, said locking means being actuated in the movement of the receiver to its inoperative posi- 6. In a telephone, a transmitter having a,

mouthpiece, a hollow arm circumferenti'ally movable 'on the mouthpiece and normally depending from the same, a receiver arm pivotally mounted in the free end of said transmitter'arm, a receiver head yieldingly mounted for pivotal movement in the other end of the receiver arm, an annular lip formed on the receiver head engageable over the outer edge of'the transmitter mouthpiece, a, spring pressed locking dog in said transmitter arm, lugs arranged on opposite sides of the transmitter mouthpiece to engage said dog and supportthe arm in a lateral position with relation to the mouthpiece,

means carried bythe receiverengageable with said dog in the movement'ofthe receiver to its inoperative position to release the transmitter arm and permitv of its gravity movement, and metal s controlledby the movem nt of the receiver to its operative and inoper tive positions to make and break 7. ',In a telephone, a transmitter having a circumferentially movable arm arranged on the mouthpiece,a"shaft mounted in the free end of the arm, a receiver arm'se cured upon the'erids-of the, shaft, contact; disks on said-shaft, spring cont-act plates in the arms engaged with said disks, a receiver head mounted in the other end of said arms the transmitter m'outhpiece, a. magnet casi-ngl carried by the head, a magnet arranged t erein, magnets in the receiver head, electrical connections between said magnets, .a spring plate ,secured at one .end to the receiver arm and;

movably connected at its other end to the magnet leasing, sides of the transmitter spring pressed locking dog in the transmit? ter arm engageable with said lugs to support the arm in a lateral position with relalugs secured to' oppositemouthpiece, a'

dog in the movement o't t tion to the transmitter, means carried by the magnet casing engageable with said locking he receiver into the mouthpiece to release the arm, a ud conducting elements between the shaft and the tree end of said arm and the magnets in the re ccivcr head, the movement of said receiver to its operative and inoperative IT-Uhliltllh making and breaking the electric circuits.

8. in a telephone, a trairmiittcr having a mouthpiece, an arm circiin'rterentiallv movable on the mouthpiece, a shaft rotatably mounted in the tree end of the arm, a rcceiicr arm secured to the ends of the shaft, contact plates arranged. in the opposite sides of the shaft, spaced contact disks on said shaft having insulated peripheral portions, an intermediate contact disk having a lag formed thereon, SI inn; contact plates in the arms engaging said disks, a receiver head mounted for pivotal movement in the other end of the receiver arm, magnets arranged therein, a connecting rod extending between the pivots of said head and. said shaft, circuit Wires connected to the contact plates, locking means carried by the transmitter arm, means arranged on opposite sides of the transmitter mouth 'iiece 'enggageahle with said locking means to support the arm, and means carried by the receiver cngagcable with said locking means in its movement to an inoperative position to release said locking means and permit of the gravity movement of the transmitter arm, the movement of the receiver to its operative and inoperative positions makingv and tweaking the electric circuits. 4

S). In a telephone, a transmitter. havinp a mouthpiece, a pivotally mounted receiver positioned in the moutl'ipicee in its inoperative position to close the same, means for locking the receiver in its inoperative posi tion, said receiver being rotatable in the mouthpiece, means on the mouthpiece to engage said locking means and release the receiver as the same is rotated to permit of the outward movement of the receiver to an operative position, and means controlled by the movement of the receiver to its operative and inoperative positions to connect and disconnect the electric circuits.

it). In a telephone, a transmitter having a mouth 'iiecc, an arm movably mounted on theanoulhpiecc. a receiver movablv associated with said arm. and disposed within the mouthpiece in its inoperative position to close the same, means for locking the receiver in its inoperative position, and means arranged on the mouthpiece of the traiis miller to engage the locking means and support. said arm in a lateral position relative to the n'iouthpiecc and to simultaneously rclcasc the receiver to permit the same to be moved to an. inoperative position.

i l l l l l i 11, In a telephone, a transmitter having a mouthpiece and an arm normallydepending from said mouthpiece and movable, thereon, a receiver disposed in the mouthpiece in its lilOPQlilllVt) position to close the same. means ,tor locking the receiver in the mouthpiece, and means to actuating said upon the movement of said arm to a lateral position with relation to the mouthpiece to re ease the receiver and permit oi" its out \vard movement to an operative position.

12. in a telephone, a transn'iitter having a mouthpiece, an arm mounted for swinging movement on the mouthpiece, a receiver carried by the arm and movable imlepemtcntlv of the same to its operative position, and means for supporting the arm in a. hori zontal position on the mouthpiece when the receiver is in operative position.

13. In a telephone, a transmitter ha ring a mouthpiece, an arm mounted for swinging, n'iovement on the mouthpiece, a receiver movable with said arm and indepcmilentlv thereof, said receiver being positioned in the mouthpiece of the transmitter to close the same when in its inoperative position, means for su iporting the arm in a horizontal position on the mouthpiece, said receiver being movable out of the mouthpiece to a position at right angles to said arm to its operative position;

14. In a telephone, a transmitter having a mouthpiece, a receiver pivotally supported upon said mouthpiece and disposed within the same in its inoperative position, said receiver being movable with relation to the mouthpiece to its operative position in which the longitudinal axis of the receiver is disposed at right angles to the longitudinal axis of the transmitter, and means for supporting the receiver upon the mouthpiece in its operative position.

15. In a telephone, a transmitter having a mouthpiece, a receiver disposed in said mouthpiece in its inoperative position to close the same, means for locking the receiver in the mouthpiece, and means to engage said locking means and release the receiver for movement out of the transmitter mouthpiece to its operative position.

it). Ina telephone, a transmitter having, a mouthpiece, a receiver rotatably mounted on he mouthpiece whereby said receiver may be moved to its operative position, said re ccivcr being disposed in the mouthpiece to close the same when in its inopm'ative position, means for locking the receiver in the mouthpiece, and means arranged on the mouthpiece to engage said locking means to release the receiver and support the same in itsoperative position. I

17. In a telephone, a transmitter havurc mouthpiece, an arm movpble on the mouthpiece a receiver carried by said arm and locking means 3-, 'r

BEST AVAILA LE cow movable independently thereof, co-acting locking elements carried by the receiver and arm to lock the receiver in the mouthpiece when in its inoperative position, means arranged on the mouthpiece to engage said locking means and release the receiver in the movement of the arm on the mouthpiece, said latter means supporting the arm and receiver in the position to which they have 

